Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.185257E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T04:38:50+0800
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    1 Object 1

    AOE ID 57253
    NORAD ID 57253
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 63859
    NORAD ID 63859
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5516 STARLINK-33821
    Time of Closest Approach 2026-10-21T16:48:39+0000
    Collision Probability (Pc) 1.185257E-6
    Conjunction Distance (km) 2.209 km
    Relative Speed (km/s) 5.067 km/s
    Conjunction Risk Parameters R (Radial): -0.454 | I (In-track): -2.038 | C (Cross-track): -0.716
    Collision Risk Index (CRI) 0.36
    X Position (km) 2858.602 2856.59
    Position Y (km) -4483.188 -4484.052
    Position Z (km) 4328.023 4327.737
    Velocity X (km/s) 6.927 5.207
    Velocity Y (km/s) 2.517 5.216
    Velocity Z (km/s) -1.963 1.963

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5516 STARLINK-33821
    Semimajor Axis (a) 6861.211 km 6861.146 km
    Eccentricity (e) 0.000124 0.000132
    Inclination (i) 43.0026° 43.0018°
    RAAN 197.9054° 255.0054°
    Perigee Argument 279.5963° 271.6588°
    Mean Anomaly (M) 80.4748° 88.4112°
    Apogee 483.929 km 483.917 km
    Perigee 482.219 km 482.101 km
    Orbit Epoch 2026-10-19T03:07:14+0000 2026-10-19T08:01:26+0000

    STARLINK-5516 & STARLINK-33821 Collision Probability (Pc) Trend

    STARLINK-5516 & STARLINK-33821 Collision Probability (Pc) TrendNot Available

    STARLINK-5516 & STARLINK-33821 Miss Distance (Miss Distance) Trend

    STARLINK-5516 & STARLINK-33821 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5516Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33821Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5516Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33821Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5516

    No nearby objects data